我试过了:
ostringstream oss;
read a string from file and put to oss;
string str;
str << oss.str();// error here "error: no match for ‘operator>>’ in 'oss >> str' "
如果我使用str = oss.str();而不是打印字符串的值,它会打印出"....0xbfad75c40xbfad75c40xbf...." likes内存地址。
有人能告诉我为什么吗?谢谢。
我在WinForm应用程序中使用Windsor Castle和log4net时遇到了这个错误。
错误:
Could not convert from 'Castle.Services.Logging.Log4netIntegration.Log4netFactory,Castle.Services.Logging.Log4netIntegration,Version=2.5.1.0, Culture=neutral,PublicKeyToken=407dd0808d44fbdc' to System.Type - Maybe type could not be found
堆栈
我遵循了关于std::ofstream::cplusplus.com二进制的教程,似乎无法获得二进制模式下所需的十六进制输出。
目前,我需要在密码学中执行一个项目,并要求输出采用二进制模式(而不是将十六进制值写入文件的内容)。
下面是我代码的摘录(附注释):
ofstream writeout(filename2.c_str(), ios::binary);
//ctextvec is the vector that stores the ciphertext
for (int i=0; i<ctextvec.size(); i+=2)
{
ostringstream oss,
最近,我将我的android工作室更新为3.2,现在我在构建时出现了以下错误:
Could not find com.android.tools.build:aapt2:3.2.0-4818971.
Searched in the following locations:
file:/C:/Users/me/AppData/Local/Android/Sdk/extras/m2repository/com/android/tools/build/aapt2/3.2.0-4818971/aapt2-3.2.0-4818971.pom
file:/C:/Users/me/AppData/Local
我有点小问题...我知道什么是EXC_BAD_ACCESS错误,我通常也知道如何修复它,但这个错误让我完全不知所措。我把所有这些都放在一个类中,下面是一个方法:
double Matrix::get_element(int r, int c) const {
//Retrieve the element at row r and column c
//Should not modify the value stored in Matrix but return a double copy of the value
double currentValue = matri
为什么~/.sbt/0.13/plugins/build.sbt中定义的插件不包括在sbt tasks -V列表中?
jacek:~/oss/scalania
$ sbt about
[info] Loading global plugins from /Users/jacek/.sbt/0.13/plugins
[info] Loading project definition from /Users/jacek/oss/scalania/project
[info] Set current project to scalania (in build file:/Users/jacek/os